<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            list-style-type: none;
        }
        div a:hover{
            color: #F60;
            text-decoration: underline;
        }
        .sz{
            background-color:#0f7cbf;
            font-size: 18px;
            display: block;
            width: 200px;
            height: 35px;
            line-height: 35px;
            color: white;
            padding-left: 20px;
        }
        .sz:hover{
            text-decoration: underline;
        }
        .li{
            font-size: 14px;
            font-weight: bold;
            line-height: 30px;
            width: 220px;
            background-color: #e4f1fa;
            color: #0f7cbf;
        }
        .lili{
            font-size: 12px;
            line-height: 20px;
            color: #666;
        }
    </style>
</head>
<body>
    <div>
        <ul>
            <li class="sz">家用电器</li>
            <li class="li">大家电</li>
            <li class="lili">
                <a href="#">平板电视</a>
                <a href="#">洗衣机</a>
                <a href="#">冰箱</a>
                <a href="#">空调</a>
                <a href="#">冷柜</a>
                <a href="#">消毒柜</a>
            </li>
            <li class="li">生活电器</li>
            <li class="lili">
                <a href="#">风扇</a>
                <a href="#">净化器</a>
                <a href="#">吸尘器</a>
                <a href="#">电话机</a>
                <a href="#">净水机</a>
            </li>
            <li class="li">厨房电器</li>
            <li class="lili">
                <a href="#">榨汁机</a>
                <a href="#">电压力锅</a>
                <a href="#">电饭锅</a>
                <a href="#">电磁炉</a>
                <a href="#">吸尘器</a>
            </li>
            <li class="li">五金电器</li>
            <li class="lili">
                <a href="#">沐浴水槽</a>
                <a href="#">电动工具</a>
                <a href="#">浴霸</a>
                <a href="#">手动工具</a>
                <a href="#">灯具</a>
            </li>
        </ul>
    </div>
</body>
</html>